The calculated distance (air line) between Saḩāb and Aţ Ţafīlah is approximately 75 miles respectively 121 kilometers.
By car or train, the actual journey to Aţ Ţafīlah is certainly longer, as only the direct route (as the crow flies) between Saḩāb and Aţ Ţafīlah has been calculated here.
Air line (approximately)
121 kilometers
65 nautical miles